<http://webisa.webdatacommons.org/prov/489061116>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/446278152> .
<http://webisa.webdatacommons.org/446278152>	<http://www.w3.org/ns/prov#value>	" ??? Each vertex and face is a node" .
<http://webisa.webdatacommons.org/446278152>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/446278152>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .